AC Voltage Measurements to 120 V With a Josephson Arbitrary Waveform Synthesizer and an Inductive Voltage Divider [0.03%]
基于约瑟夫森任意波形合成器和感应电压分压器的120V交流电压测量
Dimitrios Georgakopoulos,Ilya Budovsky,Samuel P Benz
Dimitrios Georgakopoulos
We have developed a system to extend, by a factor of up to 1000, the voltage range over which Josephson arbitrary waveform synthesizers (JAWS) can be used in ac voltage metrology. The system is based on a precision inductive voltage divider...
Zhixiang Zhao,Siwei Xie,Xi Zhang et al.
Zhixiang Zhao et al.
Reading out from large-scale silicon photomultiplier (SiPM) arrays is a fundamental technical obstacle blocking the application of revolutionary SiPM technologies in nuclear imaging systems. Typically, it requires using dedicated applicatio...
Graphene Devices for Tabletop and High-Current Quantized Hall Resistance Standards [0.03%]
台式和高电流量子霍尔电阻标准的石墨烯器件
Albert F Rigosi,Alireza R Panna,Shamith U Payagala et al.
Albert F Rigosi et al.
We report the performance of a quantum Hall resistance standard based on epitaxial graphene maintained in a 5-T tabletop cryocooler system. This quantum resistance standard requires no liquid helium and can operate continuously, allowing ye...
Estimation of Attitude and External Acceleration Using Inertial Sensor Measurement During Various Dynamic Conditions [0.03%]
基于惯性传感器测量的多种动态条件下的姿态和外界加速度估计算法研究
Jung Keun Lee,Edward J Park,Stephen N Robinovitch
Jung Keun Lee
This paper proposes a Kalman filter-based attitude (i.e., roll and pitch) estimation algorithm using an inertial sensor composed of a triaxial accelerometer and a triaxial gyroscope. In particular, the proposed algorithm has been developed ...
High-Speed Microscale Optical Tracking Using Digital Frequency-Domain Multiplexing [0.03%]
基于数字频域复用的高速微米级光学追踪技术
Robert A Maclachlan,Cameron N Riviere
Robert A Maclachlan
Position-sensitive detectors (PSDs), or lateral-effect photodiodes, are commonly used for high-speed, high-resolution optical position measurement. This paper describes the instrument design for multidimensional position and orientation mea...